There are 3 things that affect the visibility of the store to the Customer Application:
- Latitude
- Longitude
- Delivery Radius
Let's take an example:
There are three stores A, B, and C. Each of them are set in a different location (Latitude/Longitude) with a different Delivery Radius. Let's say A has a delivery radius of 10 KM, B has 15 KM and C has 20 KM.
Scenario - 1
The Customer's set location doesn't come within any store delivery radius.

In this scenario, the customer won't be shown any stores.
Scenario - 2

In this scenario, the customer will only be shown Store C
Scenario - 3

In this scenario, the customer will only be shown Store A and Store B
Scenario - 4

In this scenario, the customer will only be shown all three stores. Store A, B, and C.